You don’t even have to change your diet all at once, but you can take baby steps to get there until you’ve found substitutions for everything. I think alot of people try to change too much all at once, and it’s such a shock to their routine that oftentimes they haven’t built up the habit enough for it to stick.

What’s worked for me at least is slow, gradual, purposeful changes. You’re trying to build up your supports and platforms for you to slowly climb higher and higher, not just jumping into free solo climbing and expecting to reach the top in one go without any effort. Start small and make it a repeatable habit, then as you get comfortable, build up from there.